Outer core:
The outercore extends to depth of around 3000 miles beneath the surface. Also,the outercore is made up of super heated liquid. Such as, lava traveling still deeper within the Earth, we next would go to the Earth’s outer core, which extends to a depth of around 3000 miles beneath the surface. It is believed that this outer core is made up of super-heated liquid molten lava. This lava is believed to be mostly iron, and nickel.